The village of Erul is located at 1200 m above sea level in the Erul Mountain, which is located in the Pernik district. The monastery of the village Holy Trinity dates back 400 years and has been destroyed and rebuilt many times. In front of the temple there is an ancient Roman column, used in the past as an altar. The legend of the two ancient trees–maple and beech, which rise, intertwined branches on both sides of the door of the chapel is also interesting. It is believed that the water flowing from the monastery fountain is healing and has healed many suffering people.
